Spring-wheel.



R. G. PARK, III.

SPRING WHEEL.

APPLICATION FILED IAN.2I, I9Io.

Eatented Dec. 12, 1916.

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, Norms Pneus. Inc.. Inma.. wmunamu. D. I;

R. G. PARK, la.

SPRING WHEEL. APPLICATION FILED `1AN. 27, 1910.

'Patented De@.12;1916.

v2 SHEETS-SHEET 2.

lnmnior 'Be it known that Lllticiniiio (i.

@ZZ wftom t may conce rn Peint, l r.,

, of- Pfliiledel'pliie, inthe county of lhiliidel.-

plusand State of Pennsylvanie, have in* and useful improvements whereof the i'olloiving is vented certain new in Springftlheels,

`. .es specification', reference being had to the iii accompanying drewings .My invention relates to :i spring,Y wheel, that is to soy, o. Wheel in which the relation of the rim to the hub is not e liXed one, the tivo ports being czipzible of limited motion in relation to each other, subject to the control et powerful spring-gs, whereby a cusliioiiinfg eiiect is secured, similaito that obtuined .by e pneumatic rim.

According to my invention, he hub is provided with parallel disks in xed relation to it, and between these disks the body ot the Wheel carrying .spokes sind rim, is confined with limited capacity for motionn ,A series oiE bolts which unite the opposing disks, poss through enlarged sockets in 'the 1 oody et the Wheel, with interposition of powejful coiled springs, which cushion the body of the Wheel in its relation to the hub.

.To steady the motion oi these two parts in relation to each other, and .iiil'ord s positive driving-thrust between axle and rim, a universed sliding joint is interposed between the.

two by ineens of slideiveys arranged in rectangular relation. v

@ther novel and useful features of iny invention, together with their functions will be adverted to in the description which follows.

in the accompanying drawings, Figure l, is e -verticsl section through the center of e Wheel embodying my invention. Figli, is e'if'iew in perspective of the different part-s making up the Wheel sufficiently separated to show'V their structure.

ln the drawings, a cylindrical hub l, is shaped yto receive the axle of :i vehicle. As

f, shown, it is conveniently arranged for the reception of bell-bearings as usually einployed in connection with the wheels of motor vehicles. Integral with this hub is a flange or disk 2. A second collared disk 3, parallel to and concentric with disk 2,A lits upon the outer end of the hub l, with interposition of keys 5, and is clamped or secured thereon by s screviT Washer 6, adjustable upon the threaded outer extremity of the hub. The two parallel disks 2, and 3, are further accurately and adjustably spaced 'v ltlCAltlD G; PARK, JR., F PHLLDELPH, PENNSYLVAN.

SFHNGJWHEEL,

Specification Letters Fateut.

ltiiteirted 'lie it?, Milli.

Application nlecl January 1910. Serial No. 540,309.

by zi series ot' bolts 7, which, es shown, :ire setlin disk 3, while their other extremities passing` through holes in disk 2, ere fixed therein by the nuts 8, screwing down on the threaded extremities oi.l these clamping the disk 2, between the nuts and suitable shoulders formed on the bolts.v

The ports thus described :ire :ill fixed. in relation to the hub, :ind in eiiect form port of the hub, rotuting ot :ill times with the hub truly upon the axle oiC the vehicle, and for convenience oi phreseology, the portion of the wheel thus lier described will be referred to es the hub pm'tioii. The remainder of the wheel, which may conveniently be termed the rim portion, comprises u rim l2, Within which is set :i tire lil. spokes lei, and a body portion 15, having :i thickness suitable to be received between the disk 2, and 3, of the hub portion. This body portion is provided with sockets 17, passing` din rectly through it, sind so spaced as to permit the bolts 7, ot the liub portion to pass centrally, one through ce fh socket. Coiled springs 18, which may cbnveniently be formed of heavy metal wire coiled in the shape of s bull, ns shown. rest snugly ivithin each socket, with their central coils in contact therewith. while their extremities bear upon the bolt passing' 'centrally through it, so that the entire rirn portion is cushioned in its rchitiou to the hub portion, subject to the constant tension of the conibined action of the set of coiled springs, tending to maintain the two parts in such position es to center u bolt within erich socket.

In order to relieve the coiled springs of tiny torsional strain due. to employment ot' the uxle of the vehicle wheel :is ineens of driving the wheel, provide n driving coller, with slideways, forming what l term :t universel joint, as follows: On the inner 'luce oi. disk 9, is formed a flange 20, with projecting slide plates Q1, which :ire received within e slide- Way 22, formed upon one ffice of e coller Q3, which is interposed between the flange 20, and the opposing fece of the body of the rim portion of the Wheel. 25, ere attached to this part oi the body, sind are received Within e slidevvey 24, on the opposite face of the collar 23, and which is at right angles to the slidevvziy 22.

To protect the sliding surfaces and other bolts, end

parts from dirt and dust, e packing ring 3l),v

Similar slide plates opposing fece' of' the body, nein? the edge of the disk. A cover i late 33, fits upon the outside of the wheel? completely protecting this side. v It is bolted to the body beyond the edge of the disk 3, by bolts 34. y It possesses an interiorly projecting flange 35, which reaches to the surface 'of the disk 3, with interposition of e packing ring 36. A heavy rubber ring 3S, surrounds the outwardly .pro- 'ecting collar of the disk 3, and when the ody of the wheel moves in relation to the hub portion, the ring comes into Contact of the hub; the body of the rim portion hevi ingsocketsformed therein; bolts uniting the disks of the hub and passing through said sockets; springs interposed between the sockets and the bolts, whereby one portion of the wheel is cushioned relative to the other, e collar interposed between said portions of the wheel, said coller having slideways et right angles to each other co erating with projecting slide plates oarrie respectively by the hub portion and the rim portion of the wheel; an outside cover plate fastened to the rim portion und covering the entire end of the hub; and an elastic ring interposed between the end of the liub portion and the inside of the cover plate, with which said cover plete is adapted to contact yto limit the relative movement between the two portions of thewheel.

In testimony whereof, I have hereunto signed my name, at Philadelphia, Pennsyl- Vania, this twenty-second dey of January.

RICHARD G. PARK, J n. Witnesses: JAMES' H. BELL, E. L. FULLERT'ON. 

